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Finding the Fourth Proportional to 545,187.01, 817,947.93 and 279,134.32

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Solution

The fourth proportional to 545,187.01, 817,947.93 and 279,134.32 is: 418,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,187.01 : 817,947.93 = 279,134.32 : x
  2. Step 2: Convert to fraction form
    545,187.01/817,947.93 = 279,134.32/x
  3. Step 3: Cross multiply
    545,187.01x = 817,947.93 × 279,134.32
  4. Step 4: Simplify right side
    545,187.01x = 228,317,335,146.22
  5. Step 5: Solve for x
    x = 228,317,335,146.22/545,187.01
  6. Step 6: Final answer
    x = 418,787.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.